Ferrous, non ferrous and precious metal prime materials and slags, sludges, residues, spent catalysts, drosses, filter cakes, tubings, dusts, fines, hard scraps, and aluminum, cadmium, chrome, cobalt, copper, , iron/chrome, lead, magnesium, manganese, molybdenum, nickel, palladium, platinum, rare earths, rhenium, rhodium, ruthenium, selenium, silver, vanadium, manganese, tungsten, tantalum, tin, titanium, steel and stainless steel
